An Improved Baseline for Sentence-level Relation Extraction

Wenxuan Zhou, Muhao Chen


Abstract
Sentence-level relation extraction (RE) aims at identifying the relationship between two entities in a sentence. Many efforts have been devoted to this problem, while the best performing methods are still far from perfect. In this paper, we revisit two problems that affect the performance of existing RE models, namely entity representation and noisy or ill-defined labels. Our improved RE baseline, incorporated with entity representations with typed markers, achieves an F1 of 74.6% on TACRED, significantly outperforms previous SOTA methods. Furthermore, the presented new baseline achieves an F1 of 91.1% on the refined Re-TACRED dataset, demonstrating that the pretrained language models (PLMs) achieve high performance on this task. We release our code to the community for future research.
Anthology ID:
2022.aacl-short.21
Volume:
Proceedings of the 2nd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 12th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)
Month:
November
Year:
2022
Address:
Online only
Editors:
Yulan He, Heng Ji, Sujian Li, Yang Liu, Chua-Hui Chang
Venues:
AACL | IJCNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
161–168
Language:
URL:
https://aclanthology.org/2022.aacl-short.21
DOI:
Bibkey:
Cite (ACL):
Wenxuan Zhou and Muhao Chen. 2022. An Improved Baseline for Sentence-level Relation Extraction. In Proceedings of the 2nd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 12th International Joint Conference on Natural Language Processing (Volume 2: Short Papers), pages 161–168, Online only. Association for Computational Linguistics.
Cite (Informal):
An Improved Baseline for Sentence-level Relation Extraction (Zhou & Chen, AACL-IJCNLP 2022)
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PDF:
https://aclanthology.org/2022.aacl-short.21.pdf